Private demons and growing clouds of suspicion hang over Alistair Dirke, a professor, and his wife, Rose, when murder accompanies them to Cap Martin on their errand to pick up a coin collection for the director of the Purslem museum. Home again there is Rose's interest in Paul; a certain anonymous persecution; a local fete; Paul's death; and Dirke's clean heels after a clean cut at his enemy. British and brainy.